Taking care of yourself is essential during each of the three trimesters of pregnancy. Healthy eating, regular exercise, and sleep are some of the most beneficial steps you can take toward a successful pregnancy. This section will give you tips on adjusting your diet and exercise regimen during the second trimester of pregnancy, and it will discuss some of the common physical discomforts of the second trimester and ways to find relief. Complications that can occur during the second trimester, such as preterm labor, preterm premature rupture of membranes (PPROM), cervical insufficiency, and preeclampsia are also covered.